How To Find Mole Fraction How To Find The Mole Fraction Of Neon?

How to find the mole fraction of neon? - how to find mole fraction

A container of oxygen, neon and helium, whose partial pressures are 100 mmHg and 300 mmHg and 200 mm Hg. The mole fraction of neon is as follows:

The options are:

A. 10.5
B.0.6
C. 0.1
D. 0.3